CN202628871U - Clutch device - Google Patents
Clutch device Download PDFInfo
- Publication number
- CN202628871U CN202628871U CN 201220186989 CN201220186989U CN202628871U CN 202628871 U CN202628871 U CN 202628871U CN 201220186989 CN201220186989 CN 201220186989 CN 201220186989 U CN201220186989 U CN 201220186989U CN 202628871 U CN202628871 U CN 202628871U
- Authority
- CN
- China
- Prior art keywords
- cam
- fixture block
- engaging
- circular groove
- disengaging gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a clutch device which comprises a cam arranged at one end of an output shaft connected with a motor, at least one locking block absorbed on the external wall of the cam and a shell. The cam and the locking block are located in a circular groove on an end face of the shell. The locking block can slide along the external wall. The clutch device is characterized in that a bump which leans against the locking block on the side face is arranged on the side wall of the circular groove. The bump is arranged in the circular groove so that the locking block slides to lean against the side face of the bump when the locking block is electrically driven by the motor so as to drive the shell to rotate. In the process, the sliding path of the locking block is shortened, the probability of mistakes is reduced, and the stability of the clutch device is ensured.
Description
Technical field
The utility model relates to a kind of engaging and disengaging gear, especially a kind of engaging and disengaging gear that is used for the motor of electrically driven curtain.
Background technique
Commonly used by motor-driven electrically driven curtain, when motor powered on, motor rotated through driving mechanism and drives opening of curtain or closed.Yet, have a power failure or during situation that power supply is unable to supply, motor can't rotate when running into, therefore can't make electrically driven curtain continue action and position can only be parked in power down the time, influenced user's normal use.For this reason, more existing motor internals are provided with clutch mechanism, the output shaft that can control motor core the state that has a power failure down with the connection of the output shaft that is connected the outside with separate.Thus when having a power failure, can be through clutch mechanism so that the output shaft of motor core separate with the output shaft that is connected the outside, the user can manually spur curtain.
Like notice of authorization number is the Chinese patent of CN201771992U; A kind of small-sized clutch is disclosed; Comprise fixture block, as the cam of driving wheel, and as the notched shell of driven wheel, cam is arranged in the notched shell, cam is to the direction protrusion and the adjacency of notched shell inwall; The inwall of notched shell is provided with the recess that can partly hold fixture block, and fixture block can not move in the part of notched shell inwall protrusion and the gap between the notched shell at cam.
Thus when as the cam rotation of driving wheel, the adjacent part of cam protrusion is pushed fixture block the direction of notched shell to, and fixture block can slide into indent and chucking on the notched shell inwall, can drive notched shell and rotate together, realizes the process that clutch closes.Yet because the recess that the notched shell inwall is provided with; Be that the output shaft of motor core is separated with the output shaft that is connected the outside during power failure; Fixture block need move long distance could break away from this meeting than being easier to cause occurring mistake from recess, use thereby influence is normal.
The model utility content
The utility model technical problem to be solved provides a kind of engaging and disengaging gear of easy to use, clutch stable operation.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of engaging and disengaging gear; Comprise the cam that is arranged on output shaft one end that is connected with motor, be adsorbed at least one fixture block on the outer wall of said cam, and housing; Said cam and said fixture block are positioned at the circular groove of said housing one end face; Said fixture block can slide along said outer wall, it is characterized in that, said circular groove sidewall be provided with the side can with the projection of said fixture block butt.
In order to make the clutch effect better; It is effective with one heart when housing rotates; Said cam is a fusiformis axisymmetricly, and said cam two ends have the adjacent portion of and adjacency outstanding to said circular groove sidewall direction, and said fixture block and said projection are even number; Said fixture block is symmetrically distributed in said cam with in separated two spaces of said circular groove, and said projection is symmetrically distributed on the said circular groove sidewall.
Said housing comprises two parts of one; The first portion of said housing is connected to outside driving mechanism with output rod interlock, said output rod, and the second portion of said housing is provided with said circular groove away from the end face of said first portion; During motor driving; After driving the housing rotation, can drive the output rod and rotate, thereby be delivered to curtain through driving mechanism.
Housing with the excellent a kind of linkage manner of output does; Said first portion is the hollow circular cylinder shape; Offer a plurality of breach on the sidewall of said first portion, said output rod is provided with the clamping sheet, upwards has a plurality of convexities that can snap onto in the said breach said clamping sheet week.
Said fixture block is the cylindrical body that magnetic material is processed, columniform fixture block can be easily along the outer move of cam.
Said engaging and disengaging gear also comprises the disc that permeability magnetic material is processed, and said cam is between said housing and said disc.The fixture block that the disc that permeability magnetic material is processed can be processed to magnetic material is with stable magnetic attraction, reduces the influence to the fixture block motion state of gravity that fixture block receives, makes the work of engaging and disengaging gear can not be subject to the orientation of installation.
Said output shaft is provided with axle sleeve outward, and said disc is arranged on an end of said axle sleeve integratedly, thereby the position of disc is fixing.
Further, said axle sleeve outer fixing has plastic fixtures, makes that thus axle sleeve can not rotate thereupon when output shaft rotated.
Compared with prior art; The advantage of the utility model is: through projection is set in circular groove; Thereby can so that motor power on fixture block when driving slide until with the side butt of projection, rotate and drive housing, the sliding path of fixture block shortens in this process; Reduce wrong odds, guaranteed the stability of engaging and disengaging gear.
Description of drawings
Fig. 1 is the engaging and disengaging gear perspective view of the utility model;
Fig. 2 is the engaging and disengaging gear decomposition texture schematic representation of the utility model;
Fig. 3 is that the A-A of Fig. 1 is to sectional view.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Referring to Fig. 1-Fig. 3, a kind of engaging and disengaging gear comprises cam 1; Integrally formed with output shaft 11 or be connected with output shaft 11, be positioned at an end of output shaft 11, the other end of output shaft 11 is flat; So that be connected, make output shaft 11 to rotate along with the rotation of motor with the output terminal of motor.Cam 1 has the outer wall 111 that is inclination, is adsorbed with at least one fixture block 12 on the outer wall 111, and in the present embodiment, fixture block 12 is two, is arranged on the cylindrical body of cam 1 both sides, and has magnetic, and fixture block 12 is adsorbed in cam 1.
Engaging and disengaging gear also comprises housing 2, and housing 2 is non-magnetic conductive part, comprises two parts of one, and first portion 21 is connected with output rod 3, and output rod 3 is used to be connected to outside driving mechanism.Output rod 3 is provided with clamping sheet 31; Upwards have a plurality of protruding 311 week; First portion 21 is the hollow circular cylinder shape; Offer a plurality of breach 211 that cooperate with protruding 311 on its sidewall, output rod 3 is inserted in the first portion 21, and is inserted in the center hole 112 on the cam 1 after passing first portion 21.The convexity 311 of output rod 3 snaps onto in the breach 211 of first portion 21, and the rotation of first portion 21 can drive 3 rotations of output rod thus.
The second portion 22 of housing 2 also is cylindrical shape, and its end face away from first portion 21 has circular groove 221, and cam 1 is positioned at circular groove 221 with fixture block 12, and cam 1 is between second portion 22 and disc 131.Cam 1 is fusiformis, and is designed to axisymmetric, and two ends have the adjacent portion 14 of and adjacency outstanding to circular groove 221 sidewall direction, thus the space in the circular groove 221 is divided into two parts, and two fixture blocks 12 place two parts respectively.Be provided with two projections 222 on the sidewall of circular groove 221 symmetrically, with fixture block 12 butts.Projection 222 also can be for more than two or have only one, fixture block 12 quantity respective change, and preferred, fixture block 12 is an even number with projection 222, and all is symmetrical distribution respectively.
When motor is in power-down state, 1 counter-rotating of the control circuit of motor control cam, fixture block 12 can move a segment distance to cam 1 center along the outer wall 111 that cam 1 tilts; When pulling curtain, output rod 3 rotates, and drives housing 2 thus and rotates; The rotation of housing 2 can not drive cam 1 and rotate, and promptly in rotation process, can not meet obstructions because fixture block 12 does not contact with circular groove 221 sidewalls this moment; Realize having a power failure and pull function, i.e. " leaving " function of clutch.
When motor is in power-up state, drive output shaft 11 and rotate, cam 1 drives fixture block 12 and in circular groove 221, rotates; Cam 1 is in rotation process; Projection 222 sides on fixture block 12 and circular groove 221 sidewalls against, and then the rotation of cam 1 can drive housing 2 and rotate, and drives output rod 3 thus and rotates thereupon; Thereby drive curtain operation, i.e. " closing " function of clutch through driving mechanism.
The above is merely the preferred implementation of the utility model; Should be pointed out that for those of ordinary skill in the art, do not breaking away under the principle prerequisite of the utility model; Can also make various deformation and improvement, this also should be regarded as the protection domain of the utility model.
Claims (8)
1. engaging and disengaging gear; Comprise the cam (1) that is arranged on output shaft (11) one ends that are connected with motor, be adsorbed at least one fixture block (12) on the outer wall (111) of said cam (1), and housing (2); Said cam (1) and said fixture block (12) are positioned at the circular groove (221) of said housing (2) one end faces; Said fixture block (12) can slide along said outer wall (111), it is characterized in that, said circular groove (221) sidewall be provided with the side can with the projection (222) of said fixture block (12) butt.
2. engaging and disengaging gear as claimed in claim 1; It is characterized in that; Said cam (1) is a fusiformis axisymmetricly, and said cam (1) two ends have the adjacent portion (14) of and adjacency outstanding to said circular groove (221) sidewall direction, and said fixture block (12) and said projection (222) are even number; Said fixture block (12) is symmetrically distributed in said cam (1) with in separated two spaces of said circular groove (221), and said projection (222) is symmetrically distributed on said circular groove (221) sidewall.
3. engaging and disengaging gear as claimed in claim 1; It is characterized in that; Said housing (2) comprises two parts of one; The first portion (21) of said housing (2) and output rod (3) interlock, said output rod (3) is connected to outside driving mechanism, and the second portion (22) of said housing (2) is provided with said circular groove (221) away from the end face of said first portion (21).
4. engaging and disengaging gear as claimed in claim 3; It is characterized in that; Said first portion (21) is the hollow circular cylinder shape; Offer a plurality of breach (211) on the sidewall of said first portion (21), said output rod (3) is provided with clamping sheet (31), upwards has a plurality of convexities (311) that can snap onto in the said breach (211) said clamping sheet (31) week.
5. engaging and disengaging gear as claimed in claim 1 is characterized in that, the cylindrical body that said fixture block (12) is processed for magnetic material.
6. engaging and disengaging gear as claimed in claim 5 is characterized in that, said engaging and disengaging gear also comprises the disc (131) that permeability magnetic material is processed, and said cam (1) is positioned between said housing (2) and the said disc (131).
7. engaging and disengaging gear as claimed in claim 5 is characterized in that, said output shaft (11) is outer to be provided with axle sleeve (13), and said disc (131) is arranged on an end of said axle sleeve (13) integratedly.
8. engaging and disengaging gear as claimed in claim 7 is characterized in that, said axle sleeve (13) outer fixing has plastic fixtures (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186989 CN202628871U (en) | 2012-04-27 | 2012-04-27 | Clutch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186989 CN202628871U (en) | 2012-04-27 | 2012-04-27 | Clutch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628871U true CN202628871U (en) | 2012-12-26 |
Family
ID=47382076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220186989 Expired - Fee Related CN202628871U (en) | 2012-04-27 | 2012-04-27 | Clutch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202628871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635645A (en) * | 2012-04-27 | 2012-08-15 | 宁波杜亚机电技术有限公司 | Clutch device |
| CN109027040A (en) * | 2016-12-27 | 2018-12-18 | 宁波奉化飞天人精密模具设计有限公司 | Magnetic conductance clutch |
-
2012
- 2012-04-27 CN CN 201220186989 patent/CN202628871U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635645A (en) * | 2012-04-27 | 2012-08-15 | 宁波杜亚机电技术有限公司 | Clutch device |
| CN109027040A (en) * | 2016-12-27 | 2018-12-18 | 宁波奉化飞天人精密模具设计有限公司 | Magnetic conductance clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20150427 |
|
| EXPY | Termination of patent right or utility model |